[Xen-devel] [PATCH 06/18] xen/x86: Move freeze/thaw_domains into common files

[Mirela Simonovic <mirela.simonovic@xxxxxxxxxx>]

These functions will be reused by suspend/resume support for ARM.

Signed-off-by: Mirela Simonovic <mirela.simonovic@xxxxxxxxxx>
Signed-off-by: Saeed Nowshadi <saeed.nowshadi@xxxxxxxxxx>
---
 xen/arch/x86/acpi/power.c | 28 ----------------------------
 xen/common/domain.c       | 29 +++++++++++++++++++++++++++++
 xen/include/xen/sched.h   |  3 +++
 3 files changed, 32 insertions(+), 28 deletions(-)

diff --git a/xen/arch/x86/acpi/power.c b/xen/arch/x86/acpi/power.c
index 93e967fe8f..794750e45b 100644
--- a/xen/arch/x86/acpi/power.c
+++ b/xen/arch/x86/acpi/power.c
@@ -109,34 +109,6 @@ static void device_power_up(enum dev_power_saved saved)
     }
 }
 
-static void freeze_domains(void)
-{
-    struct domain *d;
-
-    rcu_read_lock(&domlist_read_lock);
-    /*
-     * Note that we iterate in order of domain-id. Hence we will pause dom0
-     * first which is required for correctness (as only dom0 can add domains to
-     * the domain list). Otherwise we could miss concurrently-created domains.
-     */
-    for_each_domain ( d )
-        domain_pause(d);
-    rcu_read_unlock(&domlist_read_lock);
-}
-
-static void thaw_domains(void)
-{
-    struct domain *d;
-
-    rcu_read_lock(&domlist_read_lock);
-    for_each_domain ( d )
-    {
-        restore_vcpu_affinity(d);
-        domain_unpause(d);
-    }
-    rcu_read_unlock(&domlist_read_lock);
-}
-
 static void acpi_sleep_prepare(u32 state)
 {
     void *wakeup_vector_va;
diff --git a/xen/common/domain.c b/xen/common/domain.c
index d6650f0656..fdd00dc661 100644
--- a/xen/common/domain.c
+++ b/xen/common/domain.c
@@ -1666,6 +1666,35 @@ int continue_hypercall_on_cpu(
     return 0;
 }
 
+
+void freeze_domains(void)
+{
+    struct domain *d;
+
+    rcu_read_lock(&domlist_read_lock);
+    /*
+     * Note that we iterate in order of domain-id. Hence we will pause dom0
+     * first which is required for correctness (as only dom0 can add domains to
+     * the domain list). Otherwise we could miss concurrently-created domains.
+     */
+    for_each_domain ( d )
+        domain_pause(d);
+    rcu_read_unlock(&domlist_read_lock);
+}
+
+void thaw_domains(void)
+{
+    struct domain *d;
+
+    rcu_read_lock(&domlist_read_lock);
+    for_each_domain ( d )
+    {
+        restore_vcpu_affinity(d);
+        domain_unpause(d);
+    }
+    rcu_read_unlock(&domlist_read_lock);
+}
+
 /*
  * Local variables:
  * mode: C
diff --git a/xen/include/xen/sched.h b/xen/include/xen/sched.h
index 366acaf69a..c7a6d9504a 100644
--- a/xen/include/xen/sched.h
+++ b/xen/include/xen/sched.h
@@ -821,6 +821,9 @@ static inline int 
domain_pause_by_systemcontroller_nosync(struct domain *d)
 void domain_pause_except_self(struct domain *d);
 void domain_unpause_except_self(struct domain *d);
 
+void freeze_domains(void);
+void thaw_domains(void);
+
 void cpu_init(void);
 
 struct scheduler;
-- 
2.13.0


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